Malicious PDF — malware analysis report

Static analysis result for SHA-256 1914182d51a991e7…

MALICIOUS

PDF

83.1 KB Created: 2021-09-15 19:51:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: aa97fbfa69b87bc3dd22e44be9bfb0ee SHA-1: 386e0dc7839d5d468113aeca6109ef1cedcdffc1 SHA-256: 1914182d51a991e7d45ca0192f964dead558248e61dda0975744d25d9452fab6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ggmtc.net/userfiles/files/54710217609.pdf In PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134cf6353c3b---21504216152.pdfIn PDF document text
    • http://chongthamphucthang.com/images/news/files/12220792853.pdfIn PDF document text
    • https://laughteronlineuniversity.com/images/upload/files/fojoxikajemedufepimizi.pdfIn PDF document text
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613dccc07b047---70823590268.pdfIn PDF document text
    • http://edilcfcostruzioni.com/userfiles/files/56807613612.pdfIn PDF document text
    • http://miass.realxenon.ru/uploads/files/77633747399.pdfIn PDF document text
    • https://dreamscapes.ca/dream_scapes/userfiles/files/babinenumusek.pdfIn PDF document text
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16140613fcf6fe---12274639061.pdfIn PDF document text
    • https://jogamiskolc.hu/ckfinder/userfiles/files/9239334495.pdfIn PDF document text
    • http://brkvinc.com/userfiles/file/70471720041.pdfIn PDF document text
    • http://thsport.dk/ckfinder/userfiles/files/10720510420.pdfIn PDF document text
    • http://tikatalog.sk/_files/file/tefinititivilamapujasu.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4636ce45e---62733692673.pdfIn PDF document text
    • https://corpus.bg/files/fck/file/59094816725.pdfIn PDF document text
    • https://demo.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/72304087605.pdfIn PDF document text
    • http://samtekelektrik.com/files/jawatudug.pdfIn PDF document text
    • http://kemnhapkhau.com/upload/files/zabufinubekexirade.pdfIn PDF document text
    • https://frutalmente.pt/site/upload/file/549736604.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/xizukemepulizitudowabupex.pdfIn PDF document text
    • http://wjcopy.com/upload/files/73774347179.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/c8698b58835f16af5980dfd0ccd2fdfb/woxodajogajuxakunopukapo.pdfIn PDF document text
    • http://qianxi.cn/filespath/files/20210902065324.pdfIn PDF document text
    • http://thoitrangvabaoho.com/Images_upload/files/siwuvusep.pdfIn PDF document text
    • http://peoplefineart.com/assets/202109/files/20210908193501461493.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+use+mostory+appPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C4 17344 bytes
SHA-256: 2c719b510ade1f0f0490cc21d641f85505cb3513757d9b54e1fbce84b99f0e95
font_01_sfnt_off00010ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ED7 10464 bytes
SHA-256: c2893708c830353cfcd191fb4cb1bb9eb128de43a318ed2c7d30478b54b63eb1
font_02_sfnt_off000126bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1